I suggest you raise it up (probably anonymously) in your next all-hands or equivalent venue. As for the legality, it is case-by-case AFAIK at least in France

I suggest you raise it up (probably anonymously) in your next all-hands or equivalent venue. As for the legality, it is case-by-case AFAIK at least in France or Germany, but if they can prove harm, they can probably sue and win some money but it will take months if not years.